diff --git a/django/contrib/flatpages/tests/csrf.py b/django/contrib/flatpages/tests/csrf.py
index b65ee382a6..36b915317f 100644
--- a/django/contrib/flatpages/tests/csrf.py
+++ b/django/contrib/flatpages/tests/csrf.py
@@ -23,10 +23,13 @@ class FlatpageCSRFTests(TestCase):
                 'templates'
             ),
         )
+        self.old_LOGIN_URL = settings.LOGIN_URL
+        settings.LOGIN_URL = '/accounts/login/'
 
     def tearDown(self):
         settings.MIDDLEWARE_CLASSES = self.old_MIDDLEWARE_CLASSES
         settings.TEMPLATE_DIRS = self.old_TEMPLATE_DIRS
+        settings.LOGIN_URL = self.old_LOGIN_URL
 
     def test_view_flatpage(self):
         "A flatpage can be served through a view, even when the middleware is in use"
diff --git a/django/contrib/flatpages/tests/middleware.py b/django/contrib/flatpages/tests/middleware.py
index bedaffc8ac..b971aab458 100644
--- a/django/contrib/flatpages/tests/middleware.py
+++ b/django/contrib/flatpages/tests/middleware.py
@@ -19,10 +19,13 @@ class FlatpageMiddlewareTests(TestCase):
                 'templates'
             ),
         )
+        self.old_LOGIN_URL = settings.LOGIN_URL
+        settings.LOGIN_URL = '/accounts/login/'
 
     def tearDown(self):
         settings.MIDDLEWARE_CLASSES = self.old_MIDDLEWARE_CLASSES
         settings.TEMPLATE_DIRS = self.old_TEMPLATE_DIRS
+        settings.LOGIN_URL = self.old_LOGIN_URL
 
     def test_view_flatpage(self):
         "A flatpage can be served through a view, even when the middleware is in use"
diff --git a/django/contrib/flatpages/tests/views.py b/django/contrib/flatpages/tests/views.py
index 89bdde2d92..4a54e5697e 100644
--- a/django/contrib/flatpages/tests/views.py
+++ b/django/contrib/flatpages/tests/views.py
@@ -20,10 +20,13 @@ class FlatpageViewTests(TestCase):
                 'templates'
             ),
         )
+        self.old_LOGIN_URL = settings.LOGIN_URL
+        settings.LOGIN_URL = '/accounts/login/'
 
     def tearDown(self):
         settings.MIDDLEWARE_CLASSES = self.old_MIDDLEWARE_CLASSES
         settings.TEMPLATE_DIRS = self.old_TEMPLATE_DIRS
+        settings.LOGIN_URL = self.old_LOGIN_URL
 
     def test_view_flatpage(self):
         "A flatpage can be served through a view"